CN209114954U - A kind of anchor support of limit for height area double-circuit line - Google Patents
A kind of anchor support of limit for height area double-circuit line Download PDFInfo
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- CN209114954U CN209114954U CN201821410869.3U CN201821410869U CN209114954U CN 209114954 U CN209114954 U CN 209114954U CN 201821410869 U CN201821410869 U CN 201821410869U CN 209114954 U CN209114954 U CN 209114954U
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Abstract
The utility model provides a kind of anchor support of limit for height area double-circuit line, including cross-arm and two steel tower principal posts；The lower end of steel tower principal post is connect with basis, and cross-arm is horizontally set on the top of two steel tower principal posts, and the both ends of cross-arm are located at the two sides of steel tower principal post, and I loop line road and II loop line road are symmetricly set on cross-arm；Multiple wire jumper hanging points are provided with below cross-arm, the V-type jumper string in I loop line road and II loop line road is symmetrically suspended on the lower section of cross-arm.The lower section of cross-arm is also arranged at intervals with multiple conducting wire hanging points, and the three-phase conducting wire in I loop line road and II loop line road is connect with conducting wire hanging point respectively, and multiple ground wire hanging points are arranged at intervals with above cross-arm, and the ground wire in I loop line road and II loop line road is connect with ground wire hanging point respectively.Double back line pole tower height can be effectively reduced in the utility model tower, meets limit for height requirement to the greatest extent, while avoiding and increasing line corridor width, engineering construction difficulty is effectively reduced, have apparent economic results in society.
Description
Technical field
The utility model relates to transmission line construction fields, and in particular to a kind of limit for height area double-circuit line gate strain insulator
Tower.
Background technique
In recent years, with the continuous propulsion of power grid construction, it is smooth that line corridor problem increasingly becomes influence line project
The crucial factor of propulsion.It spreads all over the place in areas, power circuits such as the crowded location of line corridor, surrounding cities, often will appear
The case where two lines road path intersects or even line route need to pass through from the location of limited high request.With two lines road path
It is general that two ways is got over to solve the problems, such as that line route intersects using leap or brill in previous engineering for intersection.Across side
Formula is commonly used in the fact that built line voltage distribution grade is lower, tower height is lower, and span line voltage class is higher.Bore the mode of getting over
It is higher ranked to be commonly used in built line voltage distribution, bores and gets over the fact that line voltage distribution grade is lower.For surrounding city and line
Road corridor congested area, new route generally requires to bore the route of more built higher voltage grade, because of built arc sag
The limitation of height, line route are often restricted by more position is bored, and certain difficulty is brought to engineering construction.
In domestic previous engineering, anchor support is got over for the brill of double-circuit line and generally uses two single circuit designs, single loop line
The wine glass-shaped Deethanizer design that road gate anchor support generally uses three-phase conducting wire horizontally arranged.This method is needed common-tower double-return road point
It is built at two single loops, and the width of corridor that two single back lines occupy will increase much than original double loop, at itself
In the case that path is very crowded, it is also necessary to find two single back lines brill get over position certainly will be more difficult；Meanwhile three
The wine glass-shaped anchor support weight of the horizontally arranged design of phase conductor is larger, and engineering cost is relatively high.These factors both increase work
Cheng Jianshe difficulty.
Utility model content
The purpose of this utility model is that being directed to above-mentioned the problems of the prior art, a kind of limit for height area double-circuit line is provided
Gate anchor support can not only solve the problems, such as the tower height occurred when multiple-circuit on same tower bores more other voltage class routes, moreover it is possible to
Enough used in the engineering of other limited high requests (such as: airport etc.), having reduces tower height, saves corridor, reduction cost, section
The advantages that about resource is with environment is protected.
The utility model is to be achieved through the following technical solutions:
A kind of anchor support of limit for height area double-circuit line, including cross-arm and two steel tower principal posts；The lower end of steel tower principal post with
Basis connection, cross-arm are horizontally set on the top of two steel tower principal posts, and the both ends of cross-arm are located at the two sides of steel tower principal post, I loop line
Road and II loop line road are symmetricly set on cross-arm；
Multiple wire jumper hanging points are provided with below cross-arm, the V-type jumper string in I loop line road and II loop line road is symmetrically suspended on
The lower section of cross-arm is arranged at intervals with multiple conducting wire hanging points below cross-arm, the three-phase conducting wire difference in I loop line road and II loop line road
It is connect with conducting wire hanging point, multiple ground wire hanging points is arranged at intervals with above cross-arm, the ground wire difference in I loop line road and II loop line road
It is connect with ground wire hanging point.
Preferably, the cross-arm includes the middle part cross-arm and two cantilever cross-arms on same axis；Middle part cross-arm
Both ends are connect with the top of two steel tower principal posts respectively, and two cantilever cross-arms are connect with the outside of a steel tower principal post respectively.
Preferably, a wire jumper hanging point is respectively set in the both ends of the bottom of the cantilever cross-arm and middle part, middle part cross-arm
A wire jumper hanging point is respectively set in the both ends and middle part of bottom, hangs two V-type wire jumpers on three wire jumper hanging points of cantilever cross-arm
It goes here and there, two V-type jumper strings is hung on three wire jumper hanging points of middle part cross-arm.
Preferably, six V-type jumper strings along anchor support center symmetric setting, and be located at same level height.
Preferably, the bottom of cantilever cross-arm is also arranged at intervals with two conducting wire hanging points, and the bottom of middle part cross-arm is along center pair
Claim setting there are two conducting wire hanging point, the triple line in every loop line road, wherein a phase is connect with the conducting wire hanging point of middle part cross-arm, remaining
Two-phase is connect with two conducting wire hanging points of cantilever cross-arm respectively.
Preferably, four ground wires that the top of the cross-arm is symmetrical arranged there are four earth wire rack, in double-circuit line are set respectively
It sets and is connect with earth wire rack.
Preferably, it is provided with hanger at the top of the earth wire rack, which is ground wire hanging point, ground wire and ground wire hanging point
Connection.
Preferably, the steel tower principal post includes the right cylinder for becoming slope principal post and being arranged on end, becomes lower end and the base of slope principal post
The top of plinth connection, cross-arm and right cylinder connects.
Compared with prior art, the utility model has technical effect beneficial below:
The limit for height area double-circuit line gate anchor support, double-circuit line is symmetrical and horizontally disposed in anchor support two sides, it returns
Three-phase conducting wire in route uses horizontally arranged arrangement, and wire jumper and conducting wire hang on same cross-arm and are located at sustained height, be not necessarily to
Jumper wire rack is separately set again, shaft tower height is effectively reduced, meets limit for height requirement to greatest extent, it is same with traditional drum type or umbellate form
Tower two circuit tower is compared, and is had a clear superiority in terms of reducing tower height, while being avoided and being increased line corridor width, further effectively
Engineering construction difficulty is reduced, has the advantages that save corridor, save the duration.
Secondly as six phase conductors are all made of horizontally arranged, side wire spacing is larger, is difficult to using two traditional ground wires
Meet code requirement, therefore four ground wires are set on double back line pole tower, lightning protection requirement can be met, meet design specification requirement.
Detailed description of the invention
Fig. 1 is limited high regional double-circuit line gate anchor support layout drawing；
Fig. 2 is the distribution map of conducting wire hanging point, ground wire hanging point and wire jumper hanging point.
In figure: 1- becomes slope principal post；2- right cylinder；Cross-arm in the middle part of 3-；4- cantilever cross-arm；5- triangle cross-arm；6- earth wire rack；8-
First wire jumper hanger；9- the second wire jumper hanger；12-A1 conducting wire hanging point；13-B1 conducting wire hanging point；14-C1 conducting wire hanging point；15- ground wire
Hanging point.
Specific embodiment
The following describes the utility model in further detail with reference to the accompanying drawings, it is described be the explanation to the utility model and
It is not to limit.
As indicated with 1, a kind of limit for height area double-circuit line gate anchor support, which is symmetrical structure to figure, including two
It is used to support the steel tower principal post of the component of steel tower load, steel tower principal post includes becoming slope principal post 1 and right cylinder 2, and the setting of right cylinder 2 is becoming slope
The upper end of principal post 1, the top horizontal of steel tower principal post are provided with a cross-arm.
Cross-arm includes middle part cross-arm 3 and two cantilever cross-arms 4, and middle part cross-arm 3 is located between two steel tower principal posts, and middle part is horizontal
The both ends of load 3 are connect with the top of two right cylinders 2 respectively, and two cantilever cross-arms are located at the outside of two steel tower principal posts, and two
A cantilever cross-arm is connect with the outside at the top of right cylinder 2 respectively, and it is straight that middle part cross-arm 3 and two cantilever cross-arms 4 are located at uniform level
On line.
Second wire jumper hanger 9 is set below middle part cross-arm 3, the both ends of middle part cross-arm 3 are respectively arranged with wire jumper hanging point, and second
Wire jumper hanger 9 and an adjacent wire jumper hanging point hang " V " type jumper string respectively.
First wire jumper hanger 8 is set below cantilever cross-arm 4, and for hanging jumper string, 4 end of cantilever cross-arm is provided with triangle
Shape cross-arm 5, for connecting a limb of outermost V-type jumper string, a wire jumper hanging point, cantilever is arranged in the end of triangle cross-arm 5
The binding site of cross-arm 4 and right cylinder is provided with a wire jumper hanging point, and a V-type is hung on the wire jumper hanging point and the first wire jumper hanger 8
Jumper string hangs a V-type jumper string on the first wire jumper hanger 8 and triangle cross-arm 5 on wire jumper hanging point.
The lower section of cross-arm is symmetrical arranged two return wire hanging points, each to return for connecting the three-phase conducting wire in two circuits
Road includes three conducting wire hanging points, and the first circuit includes A1 conducting wire hanging point 12, B1 conducting wire hanging point 13 and C1 conducting wire hanging point 14；First time
Road includes A2 conducting wire hanging point, B2 conducting wire hanging point and C2 conducting wire hanging point.
A1 conducting wire hanging point 12 and A2 conducting wire hanging point are symmetricly set on the lower section of middle part cross-arm 3, and B1 conducting wire hanging point 13 and C1 are led
The lower section of a cantilever cross-arm 4 is arranged in line hanging point 14, and B2 conducting wire hanging point and C2 conducting wire hanging point are arranged under another cantilever cross-arm 4
Side.
The top of cross-arm is symmetrical arranged along the vertical centre of anchor support there are four earth wire rack 6, the top of two steel tower right cylinders 2
An earth wire rack 6 is respectively set, an earth wire rack 6 is respectively set in the top of two cantilever cross-arms 4；The upper end of earth wire rack 6 is provided with convex
Platform, the boss are ground wire hanging point 15, and earth wire rack 6 is obliquely installed, and ground wire hanging point is beak-like.
Referring to fig. 2, I loop line road and II loop line road are symmetrically arranged in anchor support center line two sides.
A1, B1, C1 three-phase conducting wire in I loop line road is horizontally disposed at the sustained height of cross-arm lower section, leads respectively with A1
Line hanging point 12, B1 conducting wire hanging point 13 and C1 conducting wire hanging point 14 connect；The horizontal cloth of A2, B2, C2 three-phase conducting wire in II loop line road
It is placed in below cross-arm at sustained height, is connect respectively with A2 conducting wire hanging point, B2 conducting wire hanging point and C2 conducting wire hanging point.
Four ground wires are connected on the ground wire hanging point of four earth wire racks 6.
Since I loop line road and II loop line road are symmetrical arranged, it is described as follows by taking the three-phase wire jumper in I loop line road as an example below:
The left limb of V-type jumper string of A1 and the right limb of V-type jumper string of A2 are connected at the second wire jumper hanger 9, and the right limb of the V-type jumper string of A1 connects
It is connected at middle part cross-arm 3 and the wire jumper hanging point of steel tower principal post intersection；
The left limb of V-type wire jumper of B1 is connected to cantilever cross-arm 4 and steel tower principal post intersection, the V of V-type the wire jumper right limb and C1 of B1
The left limb of type jumper string is connected to the first wire jumper hanger, and the wire jumper that the right limb of V-type jumper string of C1 is connected to triangle cross arm end is hung
Point on.
The anchor support uses double post design, and to be symmetrically arranged, monnolithic case is in gate；I loop line road and II loop line
Road is to be symmetrically arranged with steel tower center；Three-phase conducting wire in I loop line road and II loop line road is all made of horizontally disposed, jumper string
It is designed using V-type string, V-type jumper string is in horizontally arranged arrangement, and the wire jumper on two loop line roads is with the symmetrical arrangement in steel tower center；
Since conducting wire is in horizontally arranged, this tower is arranged four lightning protection ground wires, ground wire hanging point respectively symmetrically position.
Anchor support include principal post 1 with the changes slope that connect of basis and the right cylinder 2 that is connect with cross-arm, cross-arm two phase conductors of setting with
Wire jumper hanging point, cross-arm middle part setting wire jumper hanger are used as V-type jumper string side hanging point；Cantilever cross-arm 4 bears two phase conductors and two
The lower section setting wire jumper hanger of a wire jumper, cantilever cross-arm is used as wire jumper V string side hanging point；In 4 end of arm cross-arm, triangle is set
Cross-arm 5, for bearing V-type jumper string side hanging point；One earth wire rack 6 is set above steel tower principal post, and end is used as ground in beak-like
Line hanging point.
The height of exhaling of the limit for height area double-circuit line gate anchor support is referred to as 17000mm, and steel tower total height is 21500mm,
The centre distance of two steel tower principal posts is 16900mm, and the distance of cross-arm to ground is 17000mm.
It is all compared with prior art the utility model has the advantages that
Firstly, the limit for height area double-circuit line gate anchor support, two loop lines are symmetrically arranged in steel tower two using horizontally arranged
Side has a clear superiority in terms of reducing tower height compared with traditional drum type or umbellate form common-tower double-return steel tower.Simultaneously with previous scheme
It compares, width of corridor can be effectively reduced, reduce engineering construction difficulty.
Meanwhile the three-phase conducting wire in every loop line uses horizontally arranged arrangement, wire jumper and conducting wire hang on same cross-arm, same
Highly, it no longer needs to that jumper wire rack is separately arranged, shaft tower height is further effectively reduced, meets requirement for height to greatest extent.
Secondly as six phase conductors are all made of horizontally arranged, side wire spacing is larger, is difficult to using two traditional ground wires
Meet code requirement.Therefore, four ground wires are arranged in the utility model on double back line pole tower, can meet lightning protection requirement, and satisfaction is set
Count code requirement.
Double back line pole tower height can be effectively reduced in the utility model tower, meets limit for height requirement to the greatest extent, simultaneously
It avoids and increases line corridor width, engineering construction difficulty is effectively reduced, there are apparent economic results in society.The utility model
Have many advantages, such as construction rationally, form is simple, reduces tower height, saves corridor, economizes on resources, can lower engineering construction difficulty,
It saves corridor, save the advantages that duration, very big economic results in society can be generated, be with a wide range of applications.
The above content is only to illustrate the technical idea of the utility model, and the protection model of the utility model cannot be limited with this
Enclose, it is all according to the utility model proposes technical idea, any changes made on the basis of the technical scheme each falls within this reality
Within protection scope with novel claims.
Claims (8)
1. a kind of anchor support of limit for height area double-circuit line, which is characterized in that including cross-arm and two steel tower principal posts；Steel tower principal post
Lower end with basis connect, cross-arm is horizontally set on the top of two steel tower principal posts, and the both ends of cross-arm are located at the two of steel tower principal post
Side, I loop line road and II loop line road are symmetricly set on cross-arm；
Multiple wire jumper hanging points are provided with below cross-arm, the V-type jumper string in I loop line road and II loop line road is symmetrically suspended on cross-arm
Lower section, be arranged at intervals with multiple conducting wire hanging points below cross-arm, the three-phase conducting wire in I loop line road and II loop line road respectively with lead
The connection of line hanging point, is arranged at intervals with multiple ground wire hanging points above cross-arm, the ground wire in I loop line road and II loop line road respectively with ground
The connection of line hanging point.
2. the anchor support of a kind of limit for height area double-circuit line according to claim 1, which is characterized in that the cross-arm includes position
In on same axis middle part cross-arm (3) and two cantilever cross-arms (4)；The both ends of middle part cross-arm (3) respectively with two steel tower masters
The top of column connects, and two cantilever cross-arms (4) connect with the outside of a steel tower principal post respectively.
3. the anchor support of a kind of limit for height area double-circuit line according to claim 2, which is characterized in that the cantilever cross-arm
(4) a wire jumper hanging point is respectively set in the both ends and middle part of bottom, and the both ends and middle part of the bottom of middle part cross-arm are respectively set
One wire jumper hanging point hangs two V-type jumper strings, three wire jumpers of middle part cross-arm on three wire jumper hanging points of cantilever cross-arm (4)
Two V-type jumper strings are hung on hanging point.
4. the anchor support of a kind of limit for height area double-circuit line according to claim 3, which is characterized in that six V-type jumper strings
Along the center symmetric setting of anchor support, and it is located at same level height.
5. the anchor support of a kind of limit for height area double-circuit line according to claim 2, which is characterized in that cantilever cross-arm (4)
Bottom is also arranged at intervals with two conducting wire hanging points, the bottom of middle part cross-arm along center symmetric setting there are two conducting wire hanging point, every time
Triple line in route, wherein a phase is connect with the conducting wire hanging point of middle part cross-arm, remaining two-phase respectively with cantilever cross-arm (4) two
A conducting wire hanging point connection.
6. the anchor support of a kind of limit for height area double-circuit line according to claim 2, which is characterized in that the top of the cross-arm
There are four being symmetrical arranged earth wire rack (6), four ground wires in double-circuit line are separately positioned on to be connect with earth wire rack (6).
7. the anchor support of a kind of limit for height area double-circuit line according to claim 6, which is characterized in that the earth wire rack (6)
Top be provided with hanger, which is ground wire hanging point, and ground wire connect with ground wire hanging point.
8. the anchor support of a kind of limit for height area double-circuit line according to claim 1, which is characterized in that the steel tower principal post packet
The right cylinder (2) for becoming slope principal post (1) and being arranged on end is included, the lower end for becoming slope principal post (1) is connect with basis, cross-arm and right cylinder (2)
Top connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821410869.3U CN209114954U (en) | 2018-08-29 | 2018-08-29 | A kind of anchor support of limit for height area double-circuit line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821410869.3U CN209114954U (en) | 2018-08-29 | 2018-08-29 | A kind of anchor support of limit for height area double-circuit line |
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| Publication Number | Publication Date |
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| CN209114954U true CN209114954U (en) | 2019-07-16 |
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|---|---|---|---|
| CN201821410869.3U Active CN209114954U (en) | 2018-08-29 | 2018-08-29 | A kind of anchor support of limit for height area double-circuit line |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108729730A (en) * | 2018-08-29 | 2018-11-02 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of anchor support of limit for height area double-circuit line |
-
2018
- 2018-08-29 CN CN201821410869.3U patent/CN209114954U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108729730A (en) * | 2018-08-29 | 2018-11-02 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of anchor support of limit for height area double-circuit line |
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